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Surface Seal for Carbon PartsSurface pores in parts made of graphite or reinforced-carbon/ carbon materials are sealed by a silicon carbide-based coating. Coating inhibits subsurface oxidation and lengthens part life. Starting material for coating is graphite felt, which is converted to silicon carbide felt by processing it according to a prescribed time/temperature schedule. Converted felt is pulverized in a ball mill and resulting powder is mixed with an equal weight of black silicon carbide powder. Powder mixture is combined with an equal weight of adhesive to form a paste.
Document ID
19810000163
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Shuford, D. M.
(Vought Corp.)
Spruiell, J. P.
(Vought Corp.)
Date Acquired
August 11, 2013
Publication Date
November 1, 1982
Publication Information
Publication: NASA Tech Briefs
Volume: 6
Issue: 2
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
MSC-18898
Accession Number
81B10163
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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